qed: align DPI configuration to HW requirements

qed: align DPI configuration to HW requirements

Orabug: 26783820

When calculating doorbell BAR partitioning round up the number of
CPUs to the nearest power of 2 so the size of the DPI (per user
section) configured in the hardware will be stored properly and
not truncated.

Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Yuval Mintz <Yuval.Mintz@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
[ Upstream commit 107392b75ffc96a2418d5382e52b08c598575e1b ]
Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>